package netty.tcpbug.client;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.LineBasedFrameDecoder;
import io.netty.handler.codec.string.StringDecoder;

import java.net.InetSocketAddress;

/**
 * @author Huhailong
 * @Description
 * @Date 2021/4/12.
 */
public class TimeClient {

    public void connect(int port, String host) throws InterruptedException {
        //配置客户端NIO线程组
        EventLoopGroup group = new NioEventLoopGroup();
        try{
            Bootstrap bootstrap = new Bootstrap();
            bootstrap.group(group).channel(NioSocketChannel.class)
                    .option(ChannelOption.TCP_NODELAY,true)
                    .handler(new ChannelInitializer<SocketChannel>() {
                        @Override
                        protected void initChannel(SocketChannel socketChannel) throws Exception {
                            socketChannel.pipeline().addLast(new LineBasedFrameDecoder(1024));
                            socketChannel.pipeline().addLast(new StringDecoder());
                            socketChannel.pipeline().addLast(new TimeClientHandler());
                        }
                    });
            //发起连接操作
            ChannelFuture future = bootstrap.connect(new InetSocketAddress(host,port)).sync();
            //等待客户端链路关闭
            future.channel().closeFuture().sync();
        }finally {
            group.shutdownGracefully(); //优雅退出
        }
    }

    public static void main(String[] args) throws InterruptedException {
        int port = 8080;
        new TimeClient().connect(port,"127.0.0.1");
    }
}
